c5303517c3
Preprocessor directives that refer to QT_VERSION's less than Qt 5 are redundant in the qt5 modules. Change-Id: Id3a9c5f0ba07b72d1c99e51c12a240570bf0d58e Reviewed-by: Rohan McGovern
163 lines
4.3 KiB
C++
163 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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#include <QSvgRenderer>
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#include <QGraphicsEffect>
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#include "iconitem.h"
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IconItem::IconItem(const QString &filename, QGraphicsItem *parent)
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: GvbWidget(parent)
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, m_filename(filename)
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, m_rotation(0.0)
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, m_opacityEffect(0)
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, m_smoothTransformation(false)
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{
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setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred);
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setContentsMargins(0,0,0,0);
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setPreferredSize(58,58);
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}
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IconItem::~IconItem()
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{
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}
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void IconItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option);
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Q_UNUSED(widget);
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reload();
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const QPointF c = boundingRect().center();
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painter->translate(c.x(), c.y());
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painter->rotate(m_rotation);
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painter->translate(-c.x(), -c.y());
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if (m_smoothTransformation)
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painter->setRenderHints(QPainter::SmoothPixmapTransform);
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painter->drawPixmap(0,0, m_pixmap);
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}
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QSizeF IconItem::sizeHint(Qt::SizeHint which,
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const QSizeF &constraint) const
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{
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switch (which)
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{
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case Qt::MinimumSize:
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case Qt::PreferredSize:
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case Qt::MaximumSize:
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return m_pixmap.size();
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default:
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return GvbWidget::sizeHint(which, constraint);
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}
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}
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void IconItem::reload()
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{
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const QSize iconSize = size().toSize();
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if (iconSize.width() == 0 || iconSize.height() == 0)
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return;
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const QString key = m_filename+QString::number(iconSize.width())+QString::number(iconSize.height());
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if (QPixmapCache::find(key, m_pixmap))
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return;
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if (m_filename.endsWith(".svg", Qt::CaseInsensitive))
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{
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m_pixmap = QPixmap(iconSize);
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m_pixmap.fill(Qt::transparent);
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QSvgRenderer doc(m_filename);
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QPainter painter(&m_pixmap);
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painter.setViewport(0, 0, iconSize.width(), iconSize.height());
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doc.render(&painter);
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}
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else
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{
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m_pixmap = QPixmap(m_filename).scaled(iconSize);
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}
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QPixmapCache::insert(key, m_pixmap);
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updateGeometry();
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}
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QString IconItem::fileName() const
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{
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return m_filename;
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}
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void IconItem::setFileName(const QString &filename)
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{
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if( m_filename != filename) {
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m_filename = filename;
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reload();
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}
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}
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void IconItem::setOpacityEffectEnabled(const bool enable)
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{
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if (!m_opacityEffect)
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{
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QRadialGradient gradient(0.5, 0.5, 1.0);
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gradient.setCoordinateMode(QGradient::ObjectBoundingMode);
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gradient.setColorAt(0.0, QColor(0,0,0, 255));
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gradient.setColorAt(0.46, QColor(0,0,0, 255));
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gradient.setColorAt(0.62, QColor(0,0,0, 0));
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m_opacityEffect = new QGraphicsOpacityEffect;
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m_opacityEffect->setOpacityMask(gradient);
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m_opacityEffect->setOpacity(1.0);
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this->setGraphicsEffect(m_opacityEffect);
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}
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m_opacityEffect->setEnabled(enable);
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}
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bool IconItem::isOpacityEffectEnabled() const
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{
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if (m_opacityEffect)
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return m_opacityEffect->isEnabled();
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return false;
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}
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